A battery box locking mechanism

Abstract

The present invention provides a locking mechanism for a battery box, which includes a guide groove plate disposed on the vehicle body at the front of the battery box. The guide groove plate is provided with a first guide groove and a second guide groove; a large rocker arm assembly rotatably installed on the guide groove plate and used for slidingly cooperating with the first guide groove. A small rocker arm assembly is rotatably installed on the side of the large rocker arm assembly facing the guide groove and is fixedly provided with an elastic limit clamping plate. A handle is provided on the side of the large rocker arm assembly facing the battery box. Press down the handle to move the large rocker arm assembly along the first guide groove to the end of the guide groove, and then move the pressed-down small rocker arm along the second guide groove to the end. The elastic limit clamping plate rebounds and drives the large rocker arm assembly to move upward along the first guide groove while pressing down the small rocker arm assembly to lock it in the second guide groove. The structure of this application is simple, the operation is convenient, the locking is reliable, and the cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of battery locking devices, and more specifically, to a locking mechanism for a battery box. Background Art

[0002] On vehicles powered by batteries, measures should be taken to restrict the movement of the battery in the horizontal direction. For the purpose of protecting the battery, frequent impacts and bumps will inevitably damage the internal structure of the battery and thus affect its lifespan. If there is no locking device, every start and stop will cause the battery to collide with the vehicle body due to inertia. Therefore, when the pallet truck battery is placed inside the vehicle body, it needs to be locked to prevent the battery from moving horizontally inside and even falling due to the tipping of the vehicle body. When replacing the battery, it is usually pulled out from above or the side of the battery, and it is necessary to ensure that the locking mechanism is simple and easy to operate.

[0003] Figure 1 As shown in [FIGURE REFERENCE] for a traditional multi-link locking mechanism, its structure is complex, the assembly is cumbersome, and the production cost is relatively high. Therefore, how to provide a locking mechanism for a battery box with a simple structure and firm locking is a technical problem that those skilled in the art urgently need to solve. Summary of the Invention

[0004] The present invention provides a locking mechanism for a battery box, which solves the above technical problems, has a simple structure, is convenient to operate, has reliable locking, and is low in cost.

[0005] The present invention provides a locking mechanism for a battery box, including a guide groove plate provided on the vehicle body at the front of the battery box, and a first guide groove and a second guide groove are opened on the guide groove plate; a large rocker arm assembly is rotatably installed on the guide groove plate and is used for slidingly cooperating with the first guide groove. A small rocker arm assembly is rotatably installed on the side of the large rocker arm assembly facing the guide groove, and an elastic limit clamping plate is fixedly provided. A handle is provided on the side of the large rocker arm assembly facing the battery box. When the handle is pressed down and the small rocker arm assembly is moved so that the large rocker arm assembly and the small rocker arm assembly respectively move to the terminals of the first guide groove and the second guide groove, the elastic limit clamping plate presses against the battery box plate and is reset and rebounds under the extrusion of the battery box plate, driving the large rocker arm assembly to move upward along the first guide groove while pressing down the small rocker arm assembly to lock it in the second guide groove.

[0006] Preferably, the large rocker arm assembly includes a large rocker arm body, a rotating shaft and the spring limit clamping plate are fixedly provided on the side of the large rocker arm body facing the guide groove plate. The rotating shaft includes a bottom shaft and a top shaft with a diameter smaller than the bottom shaft and coaxially arranged with the bottom shaft. The handle is vertically provided on the side of the large rocker arm body facing the battery box.

[0007] Preferably, the small rocker arm assembly includes a rotating shaft seat rotatably mounted on the top shaft, a small rocker arm body fixed to the end face of the rotating shaft seat, and a small rocker arm rod vertically fixed to the side of the small rocker arm body facing the guide groove plate.

[0008] Preferably, the spring limit clamping plate includes a limit clamping plate body with a lower opening and a rubber interlayer provided in the lower opening.

[0009] Preferably, both the limit clamping plate body and the rubber interlayer are in an inverted U-shaped structure.

[0010] Preferably, the first guide groove and the second guide groove are in a V-shaped structure, the arc center of the first guide groove is the axis of the rotating shaft, and the arc center of the second guide groove is located at the terminal center of the first guide groove.

[0011] Preferably, the top of the first guide groove and the second guide groove is provided with an arc transition.

[0012] Preferably, an anti-slip sleeve is sleeved on the outer surface of the handle.

[0013] The battery box locking mechanism provided by the present invention has the following advantages:

[0014] 1. Without the need to rely on external tools, the staff can operate the handle to achieve locking and unlocking operations, which is convenient, fast and labor-saving, and the locking is firm;

[0015] 2. The structure is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0017] Figure 1 is a schematic structural diagram of a battery box locking mechanism in the prior art;

[0018] Figure 2 is a schematic structural diagram of the battery box locking mechanism provided by a specific embodiment of the present invention;

[0019] Figure 3 is Figure 2 a schematic structural diagram of the large rocker arm assembly in;

[0020] Figure 4 is Figure 3 a schematic structural diagram of another angle of;

[0021] Figure 5 is Figure 2 a schematic structural view of the small rocker arm assembly;

[0022] Figure 6 is Figure 2 a schematic view of the installation position of the middle guide groove plate;

[0023] Figure 7 is Figure 2 a schematic view of the installation of the middle guide groove plate and the large rocker arm assembly;

[0024] Figures 8 to 10 is Figure 2 a schematic view of the locking process of the large rocker arm assembly and the small rocker arm assembly;

[0025] Figure 11 is Figure 2 a schematic view of the unlocking process of the large rocker arm assembly and the small rocker arm assembly.

[0026] Among them, 1 - vehicle body, 2 - battery box plate, 3 - guide groove plate, 4 - large rocker arm assembly, 5 - small rocker arm assembly, 6 - elastic limit clamping plate, 7 - handle, 8 - fixing pin;

[0027] 31 - first guide groove, 32 - second guide groove, 33 - rotating shaft, 41 - large rocker arm body, 42 - rotating shaft, 43 - rotating shaft hole, 51 - rotating shaft seat, 52 - small rocker arm body, 53 - small rocker arm rod, 61 - limit clamping plate body, 62 - rubber interlayer. Specific embodiments

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] In order to enable those skilled in the art of this technology to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Please refer to Figure 2 and Figure 6 , Figure 2 which is a schematic structural view of the battery box locking mechanism provided by a specific embodiment of the present invention; Figure 6 is Figure 1 a schematic view of the installation position of the middle guide groove plate.

[0031] The present invention provides a locking mechanism for a battery box, mainly including a guide groove plate 3, a large rocker arm assembly 4, a small rocker arm assembly 5, an elastic limit clamping plate 6, and a handle 7. The guide groove plate 3 is provided with a first guide groove 31 and a second guide groove 32, and the two guide grooves can be blind grooves or through grooves. A rotating shaft 42 is arranged on the guide groove plate 3, and the large rocker arm assembly 4 rotates up and down relative to the guide groove plate 3 through a rotating shaft 33 and a locking pin on the rotating shaft 33. The handle 7 is installed on one side of the large rocker arm assembly 4 facing the battery box 2, which is convenient for human hands to grip. When an operator presses down the handle 7, the large rocker arm assembly 4 rotates around the rotating shaft 42 into the first guide groove 31.

[0032] The small rocker arm assembly 5 is rotatably installed on the large rocker arm assembly 4 and faces the guide groove. A handle 7 is provided on one side of the large rocker arm assembly 4 facing the battery box 2, and an elastic limit clamping plate 6 is fixedly installed on the side facing the guide groove.

[0033] When it is necessary to lock the battery, the staff presses down the handle 7, and makes the large rocker arm assembly 4 enter the first guide groove 31 and move along the guide groove to the bottom of the groove; then rotates the small rocker arm assembly 5 along the second guide groove 32 to the bottom of the second guide groove 32. At the same time, the elastic limit clamping plate 6 presses against the battery box plate 211, and the battery box plate 211 squeezes the elastic limit clamping plate 6, causing it to contract under the extrusion force; when the handle 7 is released, the elastic limit clamping plate 6 rebounds and resets, thereby driving the large rocker arm assembly 4 to move a small distance upward along the first guide groove 31. During the upward movement of the large rocker arm assembly 4, it presses down the small rocker arm assembly 5 to make it abut against the wall of the second guide groove 32, thereby realizing the locking of the storage battery. When unlocking, press down the handle 7, drive the large rocker arm assembly 4 to move downward along the first guide groove 31, and drive the small rocker arm assembly 5 to move upward along the second guide groove 32 under the drive of the large rocker arm assembly 4, so that the small rocker arm assembly 5 can be moved out of the guide groove, and finally the large rocker arm assembly 4 is rotated out to realize unlocking.

[0034] Please refer to Figure 3 and Figure 4 , Figure 3 for Figure 1 the structural schematic diagram of the large rocker arm assembly in Figure 4 and Figure 3 the structural schematic diagram of another angle of

[0035] In a specific embodiment, the large rocker arm assembly 4 includes a large rocker arm body 41, a rotating shaft 42, the above-mentioned elastic limit clamping plate 6 and a handle 7. The large rocker arm body 41 is in the shape of a bent rod or a bent sheet, and includes a connecting portion and a control portion, with a fillet transition between the connecting portion and the control portion. One end of the connecting portion is provided with a rotating shaft hole 43, and this end is attached to the guide groove plate 3 and is rotatably installed on the guide groove plate 3 through a rotating shaft 33. The control portion is parallel to the guide groove plate 3, and a handle 7 is provided at its end, and an elastic limit clamping plate 6 is provided on the side facing the guide groove. The rotating shaft 42 includes a bottom shaft and a top shaft. The bottom shaft is fixedly installed on the control portion of the large rocker arm body 41, and the top shaft is coaxially distributed with the bottom shaft. The top shaft is adapted to the first guide groove 31 and can slide along the first guide groove 31.

[0036] Please refer to Figure 5 , Figure 5 For Figure 1 the structural schematic diagram of the small rocker arm assembly.

[0037] The small rocker arm assembly 5 includes a rotating shaft seat 51, a small rocker arm body 52 and a small rocker arm rod 53. The rotating shaft seat 51 is a ring-shaped structure and is sleeved on the top shaft. The small rocker arm body 52 is fixedly arranged on the end face of the rotating shaft seat 51, and the small rocker arm rod 53 is vertically fixedly arranged on the side of the small rocker arm body 52 facing the guide groove plate 3. For the consideration of improving strength, the small rocker arm assembly 5 is preferably integrally processed. Specifically, the rotating shaft seat 51 and the top shaft are fixed by a fixing pin 8 or an opening pin, but it is not limited thereto.

[0038] The large rocker arm body 41, the rotating shaft 42, the small rocker arm body 52 and the small rocker arm rod 53 form a linkage assembly. The large rocker arm body 41 rotates around its rotating shaft 33, and the small rocker arm rod 53 rotates around the rotating shaft 42 and the rotating shaft 33 and is interlocked with each other.

[0039] When the battery needs to be locked, the following steps are executed in sequence:

[0040] Step 1: Hold the handle 7 on the large rocker arm assembly 4, lower the large rocker arm assembly 4, press down the handle 7, so that the large rocker arm assembly 4 enters the first guide groove 31 and moves along the first guide groove 31. The elastic limit clamping plate 6 on the large rocker arm assembly 4 contacts the battery box plate 211, and the elastic limit clamping plate 6 compresses, so that the rotating shaft 42 reaches the center of the first guide groove 31. The process is as shown in Figure 7 and Figure 8 shown;

[0041] Step 2: The rotating shaft 42 on the large rocker arm assembly 4 also serves as the center of the rotating shaft 42 of the small rocker arm body 52. The large rocker arm body 41, the rotating shaft 42, the small rocker arm body 52 and the small rocker arm rod 53 form a linkage assembly. When the rotating shaft 42 enters the first guide groove 31, lower the small rocker arm body 52 so that the small rocker arm rod 53 enters the bottom of the second guide groove 32 along the second guide groove 32. The process is as shown in Figure 9 and Figure 10 shown.

[0042] Step 3. Release the main swing arm body 41. Due to the rebound of the elastic limit clamping plate 6, the rotating shaft 42 moves slightly upward, leaving the center of the bottom of the first guide groove 31. The small swing arm rod 53 is subjected to a downward extrusion force and abuts against the bottom of the second guide groove 32, preventing it from sliding out, thus locking the entire clamping mechanism.

[0043] When unlocking the battery, press down the main swing arm body 41 to elastically compress the elastic limit clamping plate 6, press the rotating shaft 42 on the main swing arm body 41 back to the center of the first guide groove 31, move the small swing arm rod 53 out along the second guide groove 32, and then rotate out the rotating shaft 42 of the swing arm to unlock. As Figure 11 shown.

[0044] The above elastic limit clamping plate 6 includes a limit clamping plate body 61 and a rubber interlayer 62. The limit clamping plate body 61 is provided with a lower opening, and the rubber interlayer 62 is bonded or fastened to the limit clamping plate body 61 through a locking member. Both the limit clamping plate body 61 and the rubber interlayer 62 are in an inverted U-shaped structure.

[0045] Preferably, the first guide groove 31 and the second guide groove 32 are in a shape of an inverted V, both guide grooves are in an arc structure, and the arc directions are the same. The center of the arc of the first guide groove 31 is the axis of the rotating shaft 33, and the center of the arc of the second guide groove 32 is located at the center of the end of the first guide groove 31, that is, the center of the second guide groove 32 coincides with the center of the bottom of the first guide groove 31. This can ensure the movement accuracy of the main swing arm assembly 4 and the small swing arm assembly 5 and the matching accuracy between the two, improving the locking firmness. The radian, arc length and position of the guide groove can be adjusted according to needs to meet different locking requirements.

[0046] It can be understood that the tops of the first guide groove 31 and the second guide groove 32 are provided with arc transitions to ensure the smooth rotation in and out of the rotating shaft 42 and the small swing arm rod 53.

[0047] To prevent slipping, an anti-slip sleeve can be sleeved on the outer surface of the handle 7. The anti-slip sleeve can be a rubber sleeve, a silica gel sleeve or a sleeve body with an anti-slip structure to increase the holding friction with the hand and prevent slipping.

[0048] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0049] The above has introduced in detail the battery box locking mechanism provided by the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A locking mechanism for a battery box, characterized in that, it includes a guide groove plate (3) arranged on the vehicle body (1) at the front part of the battery box (2), and a first guide groove (31) and a second guide groove (32) are formed on the guide groove plate (3); a large rocker arm assembly (4) which is rotatably installed on the guide groove plate (3) and is used for slidingly cooperating with the first guide groove (31) is arranged on the guide groove plate (3), a small rocker arm assembly (5) is rotatably installed on one side of the large rocker arm assembly (4) facing the guide groove, and an elastic limit clamping plate (6) is fixedly arranged, a handle (7) is arranged on one side of the large rocker arm assembly (4) facing the battery box (2), when the handle (7) is pressed down and the small rocker arm assembly (5) is moved so that the large rocker arm assembly (4) and the small rocker arm assembly (5) respectively move to the terminals of the first guide groove (31) and the second guide groove (32), the elastic limit clamping plate (6) presses the battery box plate (21) and is reset and rebounds under the extrusion action of the battery box plate (21) to drive the large rocker arm assembly (4) to move upward along the first guide groove (31) while pressing down the small rocker arm assembly (5) to lock it in the second guide groove (32); the large rocker arm assembly (4) includes a large rocker arm body (41), a rotating shaft (42) and the elastic limit clamping plate (6) are fixedly arranged on one side of the large rocker arm body (41) facing the guide groove plate (3), the rotating shaft (42) includes a bottom shaft and a top shaft with a diameter smaller than that of the bottom shaft and coaxially arranged with the bottom shaft, and the handle (7) is vertically arranged on one side of the large rocker arm body (41) facing the battery box (2); the small rocker arm assembly (5) includes a rotating shaft seat (51) rotatably installed on the top shaft, a small rocker arm body (52) fixedly arranged on the end face of the rotating shaft seat (51), and a small rocker arm rod (53) vertically fixedly arranged on one side of the small rocker arm body (52) facing the guide groove plate (3); the elastic limit clamping plate (6) includes a limit clamping plate body (61) with a lower opening and a rubber interlayer (62) arranged in the lower opening; the small rocker arm assembly (5) is an integrally formed structure.

2. The locking mechanism for a battery box according to claim 1, characterized in that, both the limit clamping plate body (61) and the rubber interlayer (62) are in an inverted U-shaped structure.

3. The locking mechanism for a battery box according to claim 1, characterized in that, the first guide groove (31) and the second guide groove (32) are in a V-shaped structure, the arc center of the first guide groove (31) is the axis of the rotating shaft (33), and the arc center of the second guide groove (32) is located at the terminal center of the first guide groove (31).

4. The locking mechanism for a battery box according to claim 1, characterized in that, the tops of the first guide groove (31) and the second guide groove (32) are provided with arc transitions.

5. The locking mechanism for a battery box according to claim 1, characterized in that, an anti-slip sleeve is sleeved on the outer surface of the handle (7).

6. The locking mechanism for a battery box according to claim 1, characterized in that, the rotating shaft seat (51) and the top shaft are fixed by a fixing pin (8) or an open pin.

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